polls have tightened in pennsylvania. the president's lead is down to single digits. >> explain the different argument there. democrats say it's a sign of weakness, republicans say it's a sign of strength. >> the obama campaign is saying just that that mitt romney is not doing well in some of the other crucial battleground states like ohio, iowa, wisconsin, that he needs in a sign of desperation to win somewhere else. the romney campaign says they're doing fine in those states but they see the polls closing in in pennsylvania. they think they can expand, as well. we'll find out on november 6th which side is right. >> paul steinhauser live in washington. thank you so much. as we mentioned you can read some of the final words of the campaign from both president obama and mitt romney in op-eds just published on cnn.com. >>> actor clint eastwood, a romney supporter, appeared on fox news last night to talk about his wacky republican national speech and how he came to be onstage talking to an empty chair, as if president obama